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Gao, Z. (author), He, J. (author), Fritz, Martin (author), Gong, J. (author), Shen, Y. (author), Zong, Z. (author), Chen, Peng (author), Staszewski, R.B. (author), Alavi, S.M. (author), Babaie, M. (author)In a fractional-N PLL, it is beneficial to minimize the input range of its phase detector (PD) as it promotes better linearity and higher PD gain for suppressing noise contributions of the following loop components. This can be done by canceling the predicted instantaneous time offset between the frequency reference (FREF) and the variable...conference paper 2022
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Zhang, L. (author), Babaie, M. (author)Digital beamforming receivers (RXs) support MIMO operation and offer great flexibility and accuracy in multi-beam formation and calibration. However, compared with analog phased-array and hybrid systems, due to the absence of any rejection for spatial in-band blockers, the RX/ADC dynamic range and linearity should be high enough to prevent...conference paper 2022
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Tang, Z. (author), Brito Zamparette, R.L. (author), Furuta, Yoshikazu (author), Nezuka, Tomohiro (author), Makinwa, K.A.A. (author)Accurate current sensing is critical in many industrial applications, such as battery management and motor control. Precise shunt-based current sensors have been reported with gain errors of less than 1% over the industrial temperature range (-40°C to 85°C) [1]–[4]. However, since they are intended for coulomb counting, their bandwidth is...conference paper 2022
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Wang, Z. (author), Almeida, José Humberto S. (author), Ashok, Aravind (author), Wang, Zhonglai (author), Castro, Saullo G.P. (author)Variable-angle filament-wound (VAFW) cylinders are herein optimized for minimum mass under manufacturing constraints, and for various design loads. A design parameterization based on a second-order polynomial variation of the tow winding angle along the axial direction of the cylinders is utilized to explore the nonlinear steering-thickness...journal article 2022
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Kalloe, S.A. (author), Hofland, Bas (author), Antolínez, José A. Á. (author), van Wesenbeeck, B (author)The last years, capacity of vegetation to reduce wave impact is receiving considerable attention. To predict wave attenuation processes within vegetation fields reliable estimates of vegetation parameters are needed. This proves to be difficult for woody vegetation as it consists of complex branch structures, characterized by varying branch...journal article 2022
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Gong, J. (author), Patra, Bishnu (author), Enthoven, L.A. (author), van Staveren, J. (author), Sebastiano, F. (author), Babaie, M. (author)LC VCOs with low phase noise (PN) and an octave frequency-tuning range (FTR) are required for multistandard communication devices, software-defined radios, and wireline data links. A viable popular approach is to exploit multicore mode-switching VCOs for two reasons: (1) their PN improves linearly by in-phase coupling of N identical VCOs; (2)...conference paper 2022
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Song, Minyoung (author), Huang, Yu (author), Shen, Yiyu (author), Shi, Chengyao (author), Breeschoten, Arjan (author), Konijnenburg, Mario (author), Visser, Huib (author), Romme, J.P.A. (author), Dutta, Barundeb (author), Alavi, S.M. (author)Intra-cortical extracellular neural sensing is being rapidly and widely applied in several clinical research and brain-computer interfaces (BCIs), as the number of sensing channels continues to double every 6 years. By distributing multiple high-density extracellular micro-electrode arrays (MEAs) in vivo across the brain, each with 1000's of...conference paper 2022
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Zhang, H. (author), Berkhout, Marco (author), Makinwa, K.A.A. (author), Fan, Q. (author)Class-D amplifiers (CDAs) are often used in audio applications due to their superior power efficiency. Due to the sensitivity of the human ear, a large dynamic range (DR) is desired, and audio DACs with up to 130dB DR are commercially available [1]. However, the DR of the CDAs they drive is typically much lower [2]-[4], mainly due to the...conference paper 2022
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Karmakar, S. (author), Berkhout, Marco (author), Makinwa, K.A.A. (author), Fan, Q. (author)Piezoelectric speakers are gaining popularity on account of their improving form-factor and audio quality, making them a good fit for many audio applications such as in televisions, laptops, etc. Such speakers can be modelled as a large capacitive load, and so are typically driven by a Class-AB amplifier via a series resistor that ensures driver...conference paper 2022
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Berrio, Shyrle (author), Barrero, Lope H. (author), Zambrano, Laura (author), Papadimitriou, E. (author)Comprehension of traffic signs is important to road safety. This review aims to study the extent to which road users in different countries comprehend traffic signs and to identify which ergonomic principles in traffic sign design can affect the levels of comprehension. We conducted an extensive literature review dealing with comprehension of...review 2022
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Weng, Lingling (author), van Laarhoven, Antoinette I.M. (author), Peerdeman, Kaya J. (author), Evers, A.W.M. (author)Background: Nocebo and placebo effects, i.e., adverse or beneficial treatment effects, respectively, putatively due to expectancies can modulate pain and itch. These effects can generalize within the pain or itch modality. Predicting the induction and generalization of these effects can be helpful in clinical practice. This study aims to...journal article 2022
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Dushatskiy, A. (author), Alderliesten, T. (author), Bosman, P.A.N. (author)Neural Architecture Search (NAS) has recently become a topic of great interest. However, there is a potentially impactful issue within NAS that remains largely unrecognized: noise. Due to stochastic factors in neural network initialization, training, and the chosen train/validation dataset split, the performance evaluation of a neural network...conference paper 2022
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Zhu, J. (author), Gienger, Michael (author), Kober, J. (author)Moving away from repetitive tasks, robots nowadays demand versatile skills that adapt to different situations. Task-parameterized learning improves the generalization of motion policies by encoding relevant contextual information in the task parameters, hence enabling flexible task executions. However, training such a policy often requires...journal article 2022
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Hou, Shuhan (author), Wang, Zhaokun (author), Yang, Huiru (author), Jiang, Jing (author), Gao, Chenshan (author), Liu, Yufei (author), Tang, Xiaosheng (author), Ye, H. (author)For the relevant properties of pristine and doped (Si, P, Se, Te, As) monolayer WS<sub>2</sub> before and after the adsorption of CO, CO<sub>2</sub>, N<sub>2</sub>, NO, NO<sub>2</sub> and O<sub>2</sub>, density functional theory (DFT) calculations are made. Calculation results reveal that the monolayer WS<sub>2</sub> doped with P and As atoms...journal article 2022
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Keshavarz, Fatemeh (author), Kavun, V. (author), van der Veen, M.A. (author), Repo, Eveliina (author), Barbiellini, Bernardo (author)Selective separation of rare earth elements (REEs) from solutions of mixed heavy and light metals by solid adsorbents is an important challenge in the fields of water treatment and metal recovery. The main challenge is water instability of many adsorbents, specifically metal–organic frameworks (MOFs), and their low selectivity. Grafting...journal article 2022
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Tanner, Florian (author), Tonn, Sebastian (author), de Wit, J. (author), Van den Ackerveken, Guido (author), Berger, Bettina (author), Plett, Darren (author)Plant pathogens cause yield losses in crops worldwide. Breeding for improved disease resistance and management by precision agriculture are two approaches to limit such yield losses. Both rely on detecting and quantifying signs and symptoms of plant disease. To achieve this, the field of plant phenotyping makes use of non-invasive sensor...review 2022
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Shi, Z. (author), Su, Qingtian (author), Kavoura, Dr. Florentia (author), Veljkovic, M. (author)The short-headed stud connectors play a critical role on the interaction of the orthotropic steel deck (OSD) and the ultra-high performance concrete (UHPC) layer in orthotropic steel-UHPC composite bridge deck. In this paper, the fatigue behavior of these short-headed stud connectors was experimentally investigated in a beam test. The failure...journal article 2022
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Fritz, Thibaud M. (author), Dedoussi, I.C. (author), Eastham, Sebastian D. (author), Speth, Raymond L. (author), Henze, Daven K. (author), Barrett, Steven R.H. (author)Depletion of stratospheric ozone, and the associated increase in population exposure to UV radiation, is an environmental consequence of high-altitude, supersonic aviation. Assessments of the impacts of emissions from subsonic aircraft – which fly at lower altitudes – have instead shown that they produce a net increase, rather than decrease,...journal article 2022
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Zhu, K. (author), Kurowicka, D. (author)Multivariate statistical models can be simplified by assuming that a pattern of conditional independence is presented in the given data. A popular way of capturing the (conditional) independence is to use probabilistic graphical models. The relationship between strongly chordal graphs and m-saturated vines is proved. Moreover, an algorithm to...journal article 2022
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van Dobben de Bruyn, J. (author), Smit, Harry (author), van der Wegen, Marieke (author)This paper compares the divisorial gonality of a finite graph G to the divisorial gonality of the associated metric graph Γ(G,1) with unit lengths. We show that dgon(Γ(G,1)) is equal to the minimal divisorial gonality of all regular subdivisions of G, and we provide a class of graphs for which this number is strictly smaller than the...journal article 2022